EP2425500B1 - Adapting element for serial data transfer in a motor vehicle - Google Patents

Adapting element for serial data transfer in a motor vehicle Download PDF

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Publication number
EP2425500B1
EP2425500B1 EP10715099.7A EP10715099A EP2425500B1 EP 2425500 B1 EP2425500 B1 EP 2425500B1 EP 10715099 A EP10715099 A EP 10715099A EP 2425500 B1 EP2425500 B1 EP 2425500B1
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EP
European Patent Office
Prior art keywords
housing part
adapter element
wall
longitudinal axis
element according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP10715099.7A
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German (de)
French (fr)
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EP2425500A1 (en
Inventor
Martin Huber
Udo Schuster
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MD Elektronik GmbH
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MD Elektronik GmbH
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Publication of EP2425500A1 publication Critical patent/EP2425500A1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6591—Specific features or arrangements of connection of shield to conductive members
    • H01R13/6592—Specific features or arrangements of connection of shield to conductive members the conductive member being a shielded cable
    • H01R13/6593—Specific features or arrangements of connection of shield to conductive members the conductive member being a shielded cable the shield being composed of different pieces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/26—Connectors or connections adapted for particular applications for vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter

Definitions

  • the invention relates to an adapter element, which comprises two housing parts, for serial data transmission in a vehicle, according to the preamble of claim 1.
  • Such adapter elements are used for example in motor vehicles or aircraft and are usually needed in large quantities. For cost-effective provision of appropriate adapter elements a simple structure and ease of manufacture are of great importance.
  • such adapter elements must be electromagnetically well shielded so that no radiated electromagnetic waves, for example, in the on-board electronics of the vehicle in question can cause interference.
  • it must be avoided that disturbances of the data transmission are caused by external electromagnetic radiation in the adapter element.
  • a vehicle cable for a motor vehicle which has a shielded construction.
  • the associated inner housing of a connector is designed such that it is enclosed by a shield housing, wherein the contact between the inner housing and the shield housing is made for example by pressing the two components.
  • the US Patent 6948984 discloses an adapter element according to the preamble of claim 1 with two shielding housing parts, wherein tongues of the inner housing part are arranged in radially continuous recesses of the outer housing part.
  • the invention is therefore an object of the invention to provide an adapter element which is very well shielded, so that the radiated electromagnetic power is minimized, and ensures a high EMC tightness is. Furthermore, the adapter element should still be manufacturable with comparatively little production effort.
  • the adapter element for serial data transmission in a vehicle comprises a first housing part, which is designed to be electrically conductive and can be connected to a screen. Furthermore, the adapter element comprises a second housing part, which is likewise designed to be electrically conductive and has at least one contact element.
  • the two housing parts are arranged such that the second housing part is enclosed by the first housing part in a first area, wherein the first area extends along the longitudinal axis of the adapter element.
  • the contact element is electrically contacted in this first area with the first housing part, wherein for the production of the contacting the adapter element is configured so that accessibility to the contacting point is ensured from the outside with a directional component orthogonal to the longitudinal axis.
  • the second housing part is surrounded on both sides of the first housing part within a further region, relative to a directional component orthogonal to the longitudinal axis, wherein the further region also extends along the longitudinal axis of the adapter element.
  • the first region can also be seen as a section of the adapter element with an extension in the axial direction, wherein this section is characterized in that in this the second housing part is enclosed by the first housing part.
  • the further region constitutes a further subsection of the adapter element within which the second housing part is surrounded on both sides by the first housing part, relative to a directional component orthogonal to the longitudinal axis, whereby the further subsection extends along the longitudinal axis of the adapter element.
  • an imaginary line which leads radially outward from the central longitudinal axis, first cuts the one first housing part then the second housing part and finally again the first housing part.
  • the adapter element can be configured such that in the contacted state, the contact element is fixed with axial overlap on the first housing part.
  • the first housing part may have a substantially cuboid outer contour.
  • all outer surfaces of the first housing part with the exception of that surface which is relevant for the interaction of the plug connection elements, at least partially enclosed by the shield housing.
  • the first housing part is advantageously integrally formed, in particular as a casting.
  • the first housing part can be produced by a zinc die casting method or a metal injection molding method.
  • the first housing part has a recess which does not completely penetrate the wall of the first housing part, ie is formed as a blind hole, for instance with a round or oval cross section.
  • the contact element with the first housing part is electrically contacted by a welded joint, wherein alternatively at this point, a solder joint or a flange can be made.
  • a solder joint or a flange can be made.
  • the radiation of electromagnetic waves also depends on the geometry of the radiating body.
  • the adapter element according to the invention has proved to be particularly advantageous when using a universal serial bus connector (USB connector), in particular in the case of a USB standard connector or a USB standard connector of the type A.
  • USB connector universal serial bus connector
  • the adapter element according to the invention can be used for an interface according to the USB 2.0 standard, without difficulties with the electromagnetic compatibility being expected.
  • data transfer rates of 480 Mbit / s are easily possible, although such high data transfer rates result in high voltage frequencies in the adapter element.
  • the second housing part advantageously encloses a universal serial bus connector, in particular a standard plug or a standard socket of type A.
  • the adapter element according to the invention has proved to be particularly advantageous for designs with at least four wires.
  • the first housing part advantageously encloses or forms a four-wire plug connector, in particular a standard plug or a standard socket for a so-called star quad cable.
  • the first housing part may have a partial area with a round cross section for connection to the screen.
  • first housing part 1 of an adapter element is shown.
  • the one-piece first housing part 1 has been made electrically conductive from a metal in the present embodiment by means of a so-called MIM process (Metal Injection Molding), which allows the cost-effective production of comparatively complex body geometries.
  • MIM process Metal Injection Molding
  • the first housing part 1 is designed comparatively thick-walled in order to minimize the electrical resistance in the first housing part 1 made of metal.
  • the first housing part 1 has a longitudinal axis X, which runs parallel to the coordinate axis x. According to the FIG. 1 is then another coordinate axis y orthogonal to the coordinate axis x in space.
  • the first housing part 1 comprises two with respect to the longitudinal axis X symmetrically arranged recesses 1.1, which are designed as slots and which are bounded by a respective wall 1.3 in the y-direction, so that the wall of the first housing part 1 through the recesses 1.1 in the y-direction is not completely penetrated.
  • the areas around the recesses 1.1 there is in each case a gap 1.2 between the outer wall of the first housing part 1 and the wall 1.3.
  • a space enclosed around the longitudinal axis X is provided, wherein there is no continuous opening of the first housing part 1 due to the respective displacement of the wall 1.3 with respect to the recess 1.1.
  • FIG. 3 comprises a second housing part 2, which was produced by a stamping-bending process, a contact element 2.1, which is configured as a tab of the one-piece second housing part 2.
  • the second housing part 2 is made of metal and thus electrically conductive.
  • the second housing part 2 is used in the illustrated embodiment for receiving a connector, here in the form of a flat substantially cuboid USB socket of type A.
  • an insulator element 4 is arranged on the second housing part 2, in which four inner conductors 3 extend whose ends from the Insulator element 4 protrude and serve as plug pins. The other arranged in a row ends of the inner conductor 3 are welded within the second housing part 2 in the USB socket and in the FIG. 3 not visible.
  • the first housing part 1 is pushed over the second housing part 2 (in the FIG. 3 coming from the left) until the insulator element 4 strikes the bottom of the first housing part 1, so that the second housing part 2 is enclosed by the first housing part 1 in a region A of the first housing part 1.
  • the area A extends along the longitudinal axis X of the adapter element, ie that the area A has an axial extent corresponding to the arrow for marking the area A in the FIG. 3 having.
  • the two housing parts 1, 2 are dimensioned to fit, so that no air gap at the boundary of the overlap arises.
  • the two contact elements 2.1 are performed when joining the two housing parts 1, 2 respectively through the gap 1.2.
  • the ends of the inner conductors 3 are located within the end piece 1.6, so that this can serve as part of a connector.
  • FIG. 4 is the adapter element, which is used for serial data transmission in a vehicle, shown after the assembly of the two housing parts 1, 2.
  • the contact elements 2.1 are accessible through the recesses 1.1 in the region A from the outside, ie from the y-direction or against the y-direction ( ⁇ y-direction) for the production of a good electrical contact.
  • the second housing part 2 from the first housing part 1 within a wider range U (see also FIG. 5 ) enclosed on both sides by the first housing part 1.
  • the term bilateral refers to the direction y, which is oriented orthogonal to the longitudinal axis X. Accordingly, the second housing part 2 is surrounded in the y-direction in the area U on both sides by the first housing part 1, wherein the inside lying adjacent each 1.3 of the wall can be seen from the outside.
  • the contact elements 2.1 can now be permanently connected to each other at the walls 1.3 by a selective weld connection, so that an excellent electrical contact between the housing parts 1, 2 is achieved.
  • a welding electrode is shown schematically as a vertical arrow within the recess 1.1.
  • a corresponding counterpart is plugged into the end piece 1.6, as a plug connector of a star quad cable, so that the four ends of the inner conductor 3 are in contact with the corresponding wires of the star quad cable.
  • Two of the wires are intended for the transmission of data.
  • the other two wires should supply a device connected to the USB connector with a voltage of 5 V during operation of the adapter element.
  • the four wires are surrounded by a shield in the star quad cable. This shield is contacted with the end piece 1.6, so that the shielding potential is applied to the first housing part 1 during operation of the adapter element.

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Motor Or Generator Frames (AREA)

Description

Die Erfindung betrifft ein Adapterelement, welches zwei Gehäuseteile umfasst, zur seriellen Datenübertragung in einem Fahrzeug, gemäß dem Oberbegriff des Anspruchs 1.The invention relates to an adapter element, which comprises two housing parts, for serial data transmission in a vehicle, according to the preamble of claim 1.

Derartige Adapterelemente sind etwa in Kraftfahrzeugen oder Luftfahrzeugen einsetzbar und werden meist in großen Stückzahlen benötigt. Zur kostengünstigen Bereitstellung entsprechender Adapterelemente sind ein einfacher Aufbau und eine einfache Herstellbarkeit von großer Bedeutung. Hinzu kommt, dass solche Adapterelemente elektromagnetisch gut geschirmt sein müssen, damit keine abgestrahlten elektromagnetischen Wellen beispielsweise in der Bordelektronik des betreffenden Fahrzeugs Störungen verursachen können. Zudem muss vermieden werden, dass durch äußere elektromagnetische Strahlung im Adapterelement Störungen der Datenübertragung hervorgerufen werden.Such adapter elements are used for example in motor vehicles or aircraft and are usually needed in large quantities. For cost-effective provision of appropriate adapter elements a simple structure and ease of manufacture are of great importance. In addition, such adapter elements must be electromagnetically well shielded so that no radiated electromagnetic waves, for example, in the on-board electronics of the vehicle in question can cause interference. In addition, it must be avoided that disturbances of the data transmission are caused by external electromagnetic radiation in the adapter element.

Aus der WO 07 118562 A1 ist ein Fahrzeugkabel für ein Kraftfahrzeug bekannt, welches eine geschirmte Bauweise aufweist. Das dazugehörige Innengehäuse eines Steckverbinders ist dabei so ausgestaltet, dass dieses von einem Schirmgehäuse umschlossen ist, wobei der Kontakt zwischen dem Innengehäuse und dem Schirmgehäuse beispielsweise durch Verpressen der beiden Bauteile hergestellt wird.From the WO 07 118562 A1 a vehicle cable for a motor vehicle is known, which has a shielded construction. The associated inner housing of a connector is designed such that it is enclosed by a shield housing, wherein the contact between the inner housing and the shield housing is made for example by pressing the two components.

Die US Patentschrift 6948984 offenbart ein Adapterelement nach dem Oberbegriff des Anspruchs 1 mit zwei abschirmenden Gehäuseteilen, wobei Zungen des innen liegenden Gehäuseteils in radial durchgängigen Ausnehmungen des äußeren Gehäuseteils angeordnet sind.The US Patent 6948984 discloses an adapter element according to the preamble of claim 1 with two shielding housing parts, wherein tongues of the inner housing part are arranged in radially continuous recesses of the outer housing part.

Weiterhin Ist bekannt statt eines durchgängigen Fahrzeugkabels Adapterstücke mit zwei Steckverbindern einzusetzen.Furthermore, it is known to use adapter pieces with two connectors instead of a continuous vehicle cable.

Die vorbekannten Bauformen haben unter anderem den Nachteil, dass sie, insbesondere bei hoch-frequenten Datenübertragungen, wie sie bei hohen Datenübertragungsraten auftreten, keine ausreichende elektromagnetische Verträglichkeit (EMV) aufweisen.The previously known designs have, inter alia, the disadvantage that they do not have sufficient electromagnetic compatibility (EMC), in particular in the case of high-frequency data transmissions, which occur at high data transmission rates.

Der Erfindung liegt daher die Aufgabe zugrunde, ein Adapterelement zu schaffen, welches überaus gut abgeschirmt ist, so dass die abgestrahlte elektromagnetische Leistung minimiert ist, bzw. eine hohe EMV-Dichtigkeit gewährleistet ist. Weiterhin soll das Adapterelement dennoch mit vergleichsweise geringem Herstellungsaufwand fertigbar sein.The invention is therefore an object of the invention to provide an adapter element which is very well shielded, so that the radiated electromagnetic power is minimized, and ensures a high EMC tightness is. Furthermore, the adapter element should still be manufacturable with comparatively little production effort.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruches 1 gelöst.This object is achieved by the features of claim 1.

Erfindungsgemäß umfasst das Adapterelement zur seriellen Datenübertragung in einem Fahrzeug ein erstes Gehäuseteil, welches elektrisch leitend ausgestaltet ist und mit einem Schirm verbindbar ist. Weiterhin umfasst das Adapterelement ein zweites Gehäuseteil, welches ebenfalls elektrisch leitend ausgestaltet ist und zumindest ein Kontaktelement aufweist. Die beiden Gehäuseteile sind so angeordnet, dass das zweite Gehäuseteil vom ersten Gehäuseteil in einem ersten Bereich umschlossen ist, wobei sich der erste Bereich entlang der Längsachse des Adapterelements erstreckt. Das Kontaktelement ist in diesem ersten Bereich mit dem ersten Gehäuseteil elektrisch kontaktiert, wobei zur Herstellung der Kontaktierung das Adapterelement so konfiguriert ist, dass eine Zugänglichkeit zur Kontaktierungsstelle von außen mit einer Richtungskomponente orthogonal zur Längsachse gewährleistet ist. Das zweite Gehäuseteil ist vom ersten Gehäuseteil innerhalb eines weiteren Bereichs, bezogen auf eine Richtungskomponente orthogonal zur Längsachse beidseitig umgeben, wobei sich auch der weitere Bereich entlang der Längsachse des Adapterelements erstreckt.According to the invention, the adapter element for serial data transmission in a vehicle comprises a first housing part, which is designed to be electrically conductive and can be connected to a screen. Furthermore, the adapter element comprises a second housing part, which is likewise designed to be electrically conductive and has at least one contact element. The two housing parts are arranged such that the second housing part is enclosed by the first housing part in a first area, wherein the first area extends along the longitudinal axis of the adapter element. The contact element is electrically contacted in this first area with the first housing part, wherein for the production of the contacting the adapter element is configured so that accessibility to the contacting point is ensured from the outside with a directional component orthogonal to the longitudinal axis. The second housing part is surrounded on both sides of the first housing part within a further region, relative to a directional component orthogonal to the longitudinal axis, wherein the further region also extends along the longitudinal axis of the adapter element.

Der erste Bereich kann auch als Abschnitt des Adapterelements mit einer Ausdehnung in axialer Richtung gesehen werden, wobei sich dieser Abschnitt dadurch auszeichnet, dass in diesem das zweite Gehäuseteil vom ersten Gehäuseteil umschlossen ist.The first region can also be seen as a section of the adapter element with an extension in the axial direction, wherein this section is characterized in that in this the second housing part is enclosed by the first housing part.

Somit stellt der weitere Bereich einen weiteren Teilabschnitt des Adapterelements dar, innerhalb dessen das zweite Gehäuseteil vom ersten Gehäuseteil, bezogen auf eine Richtungskomponente orthogonal zur Längsachse, beidseitig umgeben ist, wobei sich auch der weitere Teilabschnitt entlang der Längsachse des Adapterelements erstreckt.Thus, the further region constitutes a further subsection of the adapter element within which the second housing part is surrounded on both sides by the first housing part, relative to a directional component orthogonal to the longitudinal axis, whereby the further subsection extends along the longitudinal axis of the adapter element.

Innerhalb des weiteren Bereichs schneidet also eine gedachte Linie, die von der zentralen Längsachse kommend radial nach außen führt zunächst das erste Gehäuseteil dann das zweite Gehäuseteil und schließlich wieder das erste Gehäuseteil. Insbesondere kann das Adapterelement so ausgestaltet sein, dass im kontaktierten Zustand das Kontaktelement mit axialer Überdeckung am ersten Gehäuseteil festgelegt ist.Within the wider area, therefore, an imaginary line, which leads radially outward from the central longitudinal axis, first cuts the one first housing part then the second housing part and finally again the first housing part. In particular, the adapter element can be configured such that in the contacted state, the contact element is fixed with axial overlap on the first housing part.

Das erste Gehäuseteil kann eine im Wesentlichen quaderförmige Außenkontur aufweisen. Mit Vorteil werden sämtliche Außenflächen des ersten Gehäuseteils, mit Ausnahme derjenigen Fläche, welche für das Zusammenwirken der Steckverbindungselemente relevant ist, vom Schirmgehäuse zumindest teilweise umschlossen.The first housing part may have a substantially cuboid outer contour. Advantageously, all outer surfaces of the first housing part, with the exception of that surface which is relevant for the interaction of the plug connection elements, at least partially enclosed by the shield housing.

Derartige Adapterelemente werden in der Regel in besonders großen Stückzahlen benötigt, weshalb es daher außerordentlich wichtig ist, dass diese Adapterelemente einfach und kostengünstig herstellbar sind. Aus diesem Grund und im Hinblick auf eine hohe EMV-Dichtigkeit ist mit Vorteil das erste Gehäuseteil einstückig, insbesondere als ein Gussteil, ausgebildet. Insbesondere kann das erste Gehäuseteil durch ein Zinkdruckgussverfahren oder ein Metal Injection Moulding Verfahren hergestellt sein.Such adapter elements are usually required in very large numbers, which is why it is extremely important that these adapter elements are simple and inexpensive to produce. For this reason and in view of a high EMC tightness, the first housing part is advantageously integrally formed, in particular as a casting. In particular, the first housing part can be produced by a zinc die casting method or a metal injection molding method.

Das erste Gehäuseteil weist zur Herstellung der Zugänglichkeit der Kontaktierungsstelle eine Ausnehmung auf, welche die Wand des ersten Gehäuseteils nicht vollständig durchdringt, also als ein Sackloch, etwa mit rundem oder ovalen Querschnitt, ausgebildet ist.In order to produce the accessibility of the contacting point, the first housing part has a recess which does not completely penetrate the wall of the first housing part, ie is formed as a blind hole, for instance with a round or oval cross section.

In weiterer Ausgestaltung der Erfindung ist das Kontaktelement mit dem ersten Gehäuseteil durch eine Schweißverbindung elektrisch kontaktiert, wobei alternativ dazu an dieser Stelle auch eine Lötverbindung oder eine Bördelung hergestellt werden kann. Durch die Ausnehmung ist die Zugänglichkeit beispielsweise einer Schweißelektrode zur Kontaktierungsstelle ermöglicht.In a further embodiment of the invention, the contact element with the first housing part is electrically contacted by a welded joint, wherein alternatively at this point, a solder joint or a flange can be made. Through the recess, the accessibility, for example, a welding electrode is made possible for contacting.

Die Abstrahlung elektromagnetischer Wellen hängt auch von der Geometrie des abstrahlenden Körpers ab. Als besonders vorteilhaft hat sich das erfindungsgemäße Adapterelement bei der Verwendung eines Universal-Serial-Bus-Steckverbinders (USB-Steckverbinder) erwiesen, insbesondere bei einem USB-Standard-Stecker oder einer USB-Standard-Buchse vom Typ A. Insbesondere kann das erfindungsgemäße Adapterelement für eine Schnittstelle gemäß dem USB 2.0 - Standard eingesetzt werden, ohne dass Schwierigkeiten mit der elektromagnetischen Verträglichkeit zu erwarten sind. Demnach sind Datenübertragungsraten von 480 MBit/s problemlos möglich, obwohl derartig hohe Datenübertragungsraten hohe Spannungs-Frequenzen im Adapterelement zur Folge haben.The radiation of electromagnetic waves also depends on the geometry of the radiating body. The adapter element according to the invention has proved to be particularly advantageous when using a universal serial bus connector (USB connector), in particular in the case of a USB standard connector or a USB standard connector of the type A. In particular, the adapter element according to the invention can be used for an interface according to the USB 2.0 standard, without difficulties with the electromagnetic compatibility being expected. Thus, data transfer rates of 480 Mbit / s are easily possible, although such high data transfer rates result in high voltage frequencies in the adapter element.

Das zweite Gehäuseteil umschließt mit Vorteil ein Universal-Serial-Bus-Steckverbinder, insbesondere einen Standard-Stecker oder eine Standard-Buchse vom Typ A.The second housing part advantageously encloses a universal serial bus connector, in particular a standard plug or a standard socket of type A.

Das erfindungsgemäße Adapterelement hat sich als besonders vorteilhaft erwiesen für Bauweisen mit mindestens vier Adern. Demnach umschließt oder bildet mit Vorteil das erste Gehäuseteil einen vieradrigen Steckverbinder, insbesondere einen Standard-Stecker oder eine Standard-Buchse für ein so genanntes Stern-Vierer-Kabel. Weiterhin kann das erste Gehäuseteil einen Teilbereich mit einem runden Querschnitt zur Verbindung mit dem Schirm aufweisen.The adapter element according to the invention has proved to be particularly advantageous for designs with at least four wires. Accordingly, the first housing part advantageously encloses or forms a four-wire plug connector, in particular a standard plug or a standard socket for a so-called star quad cable. Furthermore, the first housing part may have a partial area with a round cross section for connection to the screen.

Unter Steckverbinder sind im Folgenden elektrische Kupplungen zu verstehen, die sowohl als Stecker, als auch als Buchsen ausgebildet sein können.Under connectors are to be understood below electrical couplings that can be configured both as a plug, as well as sockets.

Vorteilhafte Ausbildungen der Erfindung entnimmt man den abhängigen Ansprüchen.Advantageous embodiments of the invention will remove the dependent claims.

Weitere Einzelheiten und Vorteile des erfindungsgemäßen Adapterelements ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels anhand der beiliegenden Figuren.Further details and advantages of the adapter element according to the invention will become apparent from the following description of an embodiment with reference to the accompanying figures.

Es zeigen die

Figur 1
eine perspektivische Ansicht eines ersten Gehäuseteils,
Figur 2
eine Seitenansicht auf das erste Gehäuseteil,
Figur 3
eine perspektivische Ansicht eines zweiten Gehäuseteils,
Figur 4
eine Seitenansicht auf das Adapterelement,
Figur 5
eine Teilschnittdarstellung durch den Kontaktierungsbereich des Adapterelements.
It show the
FIG. 1
a perspective view of a first housing part,
FIG. 2
a side view of the first housing part,
FIG. 3
a perspective view of a second housing part,
FIG. 4
a side view of the adapter element,
FIG. 5
a partial sectional view through the contacting region of the adapter element.

In den Figuren 1 und 2 ist ein erstes Gehäuseteil 1 eines Adapterelements gezeigt. Das einstückige erste Gehäuseteil 1 ist elektrisch leitend aus einem Metall im vorliegenden Ausführungsbeispiel mit Hilfe eines so genannten MIM-Verfahrens (Metal Injection Moulding) hergestellt worden, welches die kostengünstige Herstellung von vergleichsweise komplexen Körpergeometrien erlaubt. Weiterhin ist das erste Gehäuseteil 1 vergleichsweise dickwandig ausgeführt, um den elektrischen Widerstand in dem aus Metall hergestellten ersten Gehäuseteil 1 zu minimieren. Das erste Gehäuseteil 1 weist eine Längsachse X auf, welche parallel zur Koordinatenachse x verläuft. Gemäß der Figur 1 liegt dann eine weitere Koordinatenachse y orthogonal zur Koordinatenachse x im Raum.In the Figures 1 and 2 a first housing part 1 of an adapter element is shown. The one-piece first housing part 1 has been made electrically conductive from a metal in the present embodiment by means of a so-called MIM process (Metal Injection Molding), which allows the cost-effective production of comparatively complex body geometries. Furthermore, the first housing part 1 is designed comparatively thick-walled in order to minimize the electrical resistance in the first housing part 1 made of metal. The first housing part 1 has a longitudinal axis X, which runs parallel to the coordinate axis x. According to the FIG. 1 is then another coordinate axis y orthogonal to the coordinate axis x in space.

Das erste Gehäuseteil 1 umfasst zwei bezüglich der Längsachse X symmetrisch angeordnete Ausnehmungen 1.1, die als Langlöcher ausgestaltet sind und welche durch jeweils eine Wand 1.3 in y-Richtung begrenzt sind, so dass die Wandung des ersten Gehäuseteils 1 durch die Ausnehmungen 1.1 in y-Richtung nicht vollständig durchdrungen wird. Zudem liegt in den Bereichen um die Ausnehmungen 1.1 herum jeweils ein Spalt 1.2 zwischen der Außenwand des ersten Gehäuseteils 1 und der Wand 1.3. Auf diese Weise ist im ersten Gehäuseteil 1 ein um die Längsachse X herum geschlossener Raum geschaffen, wobei durch die jeweilige Versetzung der Wand 1.3 bezüglich der Ausnehmung 1.1 keine durchgängige Öffnung des ersten Gehäuseteils 1 vorliegt. Durch die spezielle Anordnung ist trotz der Ausnehmungen 1.1 für das erste Gehäuseteil 1 eine "Sichtdichtigkeit" in y-Richtung gegeben. Weiterhin umfasst das erste Gehäuseteil 1 Rastnasen 1.4, 1.5 zur verrastbaren Verbindung des ersten Gehäuseteils 1 mit einem in den Figuren nicht dargestellten HSD-Steckelement (HSD = High Speed Data). Weiterhin weist das erste Gehäuseteil 1 ein hohlzylindrisches Endstück 1.6 auf, welches mit einem Schirm, beispielsweise mit einem Kabelgeflecht eines Stern-Vierer-Kabels, verbindbar ist.The first housing part 1 comprises two with respect to the longitudinal axis X symmetrically arranged recesses 1.1, which are designed as slots and which are bounded by a respective wall 1.3 in the y-direction, so that the wall of the first housing part 1 through the recesses 1.1 in the y-direction is not completely penetrated. In addition, in the areas around the recesses 1.1, there is in each case a gap 1.2 between the outer wall of the first housing part 1 and the wall 1.3. In this way, in the first housing part 1, a space enclosed around the longitudinal axis X is provided, wherein there is no continuous opening of the first housing part 1 due to the respective displacement of the wall 1.3 with respect to the recess 1.1. Due to the special arrangement, despite the recesses 1.1 for the first housing part 1, a "visual tightness" in the y direction is given. Furthermore, the first housing part 1 comprises latching noses 1.4, 1.5 for latchable connection of the first housing part 1 with an HSD plug-in element (HSD = high speed data), not shown in the figures. Furthermore, the first housing part 1, a hollow cylindrical end piece 1.6, which is connectable to a screen, for example with a cable mesh of a star quad cable.

Gemäß der Figur 3 umfasst ein zweites Gehäuseteil 2, welches durch ein Stanz-Biege-Verfahren hergestellt wurde, ein Kontaktelement 2.1, das als Lasche des einstückigen zweiten Gehäuseteils 2 ausgestaltet ist. Wie das erste Gehäuseteil 1 ist auch das zweite Gehäuseteil 2 aus Metall und somit elektrisch leitend hergestellt. Das zweite Gehäuseteil 2 dient im vorgestellten Ausführungsbeispiel zur Aufnahme eines Steckverbinders, hier in Form einer flachen im Wesentlichen quaderförmigen USB-Buchse vom Typ A. Weiterhin ist am zweiten Gehäuseteil 2 ein Isolatorelement 4 angeordnet, in welchem vier Innenleiter 3 verlaufen, deren Enden aus dem Isolatorelement 4 ragen und als Steckerpins dienen. Die anderen in einer Reihe angeordneten Enden der Innenleiter 3 sind innerhalb des zweiten Gehäuseteils 2 in der USB-Buchse verschweißt und in der Figur 3 nicht sichtbar.According to the FIG. 3 comprises a second housing part 2, which was produced by a stamping-bending process, a contact element 2.1, which is configured as a tab of the one-piece second housing part 2. Like the first housing part 1, the second housing part 2 is made of metal and thus electrically conductive. The second housing part 2 is used in the illustrated embodiment for receiving a connector, here in the form of a flat substantially cuboid USB socket of type A. Furthermore, an insulator element 4 is arranged on the second housing part 2, in which four inner conductors 3 extend whose ends from the Insulator element 4 protrude and serve as plug pins. The other arranged in a row ends of the inner conductor 3 are welded within the second housing part 2 in the USB socket and in the FIG. 3 not visible.

Im Zuge der Montage wird das erste Gehäuseteil 1 über das zweite Gehäuseteil 2 aufgeschoben (in der Figur 3 von links kommend) bis das Isolatorelement 4 am Boden des ersten Gehäuseteils 1 anschlägt, so dass das zweite Gehäuseteil 2 vom ersten Gehäuseteil 1 in einem Bereich A vom ersten Gehäuseteil 1 umschlossen ist. Der Bereich A erstreckt sich entlang der Längsachse X des Adapterelements, d. h. dass der Bereich A eine axiale Ausdehnung entsprechend dem Pfeil zur Kennzeichnung des Bereichs A in der Figur 3 aufweist. Die beiden Gehäuseteile 1, 2 sind passgenau dimensioniert, so dass kein Luftspalt an der Grenze der Überdeckung entsteht. Die beiden Kontaktelemente 2.1 werden beim Zusammenfügen der zwei Gehäuseteile 1, 2 jeweils durch den Spalt 1.2 geführt. Die Enden der Innenleiter 3 befinden sich innerhalb des Endstücks 1.6, so dass dieses als Teil eines Steckverbinders dienen kann.In the course of assembly, the first housing part 1 is pushed over the second housing part 2 (in the FIG. 3 coming from the left) until the insulator element 4 strikes the bottom of the first housing part 1, so that the second housing part 2 is enclosed by the first housing part 1 in a region A of the first housing part 1. The area A extends along the longitudinal axis X of the adapter element, ie that the area A has an axial extent corresponding to the arrow for marking the area A in the FIG. 3 having. The two housing parts 1, 2 are dimensioned to fit, so that no air gap at the boundary of the overlap arises. The two contact elements 2.1 are performed when joining the two housing parts 1, 2 respectively through the gap 1.2. The ends of the inner conductors 3 are located within the end piece 1.6, so that this can serve as part of a connector.

In der Figur 4 ist das Adapterelement, welches zur seriellen Datenübertragung in einem Fahrzeug dient, nach erfolgter Montage der beiden Gehäuseteile 1, 2 gezeigt. Die Kontaktelemente 2.1 sind durch die Ausnehmungen 1.1 im Bereich A von außen her, also aus y-Richtung bzw. gegen die y-Richtung (± y- Richtung) für die Herstellung einer guten elektrischen Kontaktierung zugänglich. Weiterhin ist das zweite Gehäuseteil 2 vom ersten Gehäuseteil 1 innerhalb eines weiteren Bereichs U (siehe auch Figur 5) beidseitig vom ersten Gehäuseteil 1 umschlossen. Der Begriff beidseitig bezieht sich auf die Richtung y, die orthogonal zur Längsachse X orientiert ist. Demnach ist das zweite Gehäuseteil 2 in y-Richtung im Bereich U beidseitig durch das erste Gehäuseteil 1 umgeben, wobei innen liegend benachbart jeweils die Wand 1.3 von außen zu sehen ist.In the FIG. 4 is the adapter element, which is used for serial data transmission in a vehicle, shown after the assembly of the two housing parts 1, 2. The contact elements 2.1 are accessible through the recesses 1.1 in the region A from the outside, ie from the y-direction or against the y-direction (± y-direction) for the production of a good electrical contact. Furthermore, the second housing part 2 from the first housing part 1 within a wider range U (see also FIG. 5 ) enclosed on both sides by the first housing part 1. The term bilateral refers to the direction y, which is oriented orthogonal to the longitudinal axis X. Accordingly, the second housing part 2 is surrounded in the y-direction in the area U on both sides by the first housing part 1, wherein the inside lying adjacent each 1.3 of the wall can be seen from the outside.

In dieser zusammengefügten Anordnung können nun die Kontaktelemente 2.1 an den Wänden 1.3 durch eine punktuelle Schweißverbindung miteinander bleibend verbunden werden, so dass eine ausgezeichnete elektrische Kontaktierung zwischen den Gehäuseteilen 1, 2 erreicht wird. In der Figur 5 ist eine Schweißelektrode schematisch als senkrechter Pfeil innerhalb der Ausnehmung 1.1 dargestellt.In this assembled arrangement, the contact elements 2.1 can now be permanently connected to each other at the walls 1.3 by a selective weld connection, so that an excellent electrical contact between the housing parts 1, 2 is achieved. In the FIG. 5 a welding electrode is shown schematically as a vertical arrow within the recess 1.1.

Durch die spezielle Konstruktion, bei der sich im Bereich U das erste Gehäuseteil 1 und das zweite Gehäuseteil 2 überdecken, wird quasi ein Labyrinth-Effekt für elektromagnetische Strahlen erzielt, so dass das Adapter-element eine hervorragende EMV-Dichtigkeit erreicht.Due to the special construction, in which the first housing part 1 and the second housing part 2 overlap in the region U, a labyrinth effect for electromagnetic radiation is virtually achieved, so that the adapter element achieves excellent EMC tightness.

Im Betrieb des Adapterelements wird am Endstück 1.6, als Steckverbinder eines Stern-Vierer-Kabels dient, ein entsprechendes Gegenstück angesteckt, so dass die vier Enden der Innenleiter 3 mit den entsprechenden Adern des Stern-Vierer-Kabels in Kontakt sind. Dabei sind zwei der Adern für die Übertragung von Daten bestimmt. Die anderen beiden Adern sollen im Betrieb des Adapterelements ein an den USB-Steckverbinder angeschlossenes Gerät mit einer Spannung von 5 V versorgen. Die vier Adern sind im Stern-Vierer-Kabel von einem Schirm umgeben. Dieser Schirm ist mit dem Endstück 1.6 kontaktiert, so dass am ersten Gehäuseteil 1 im Betrieb des Adapterelements das Schirmpotenzial anliegt. Durch die Kontaktierung des ersten Gehäuseteils 1 mit dem zweiten Gehäuseteil 2 mit Hilfe der oben beschriebenen Schweißverbindung ist auch das zweite Gehäuseteil 2 sicher und zuverlässig mit dem Schirmpotenzial verbunden.In the operation of the adapter element, a corresponding counterpart is plugged into the end piece 1.6, as a plug connector of a star quad cable, so that the four ends of the inner conductor 3 are in contact with the corresponding wires of the star quad cable. Two of the wires are intended for the transmission of data. The other two wires should supply a device connected to the USB connector with a voltage of 5 V during operation of the adapter element. The four wires are surrounded by a shield in the star quad cable. This shield is contacted with the end piece 1.6, so that the shielding potential is applied to the first housing part 1 during operation of the adapter element. By contacting the first housing part 1 with the second housing part 2 with the aid of the above-described welded connection, the second housing part 2 is also securely and reliably connected to the shielding potential.

Bedingt durch die hohen Datenübertragungsraten, z. B. 480 Mbit/s, treten im Adapterelement hohe Spannungs-Frequenzen, in der Größenordnung von beispielsweise 40 MHz auf. Es hat sich nun gezeigt, dass ein entsprechendes Adapterelement in herkömmlicher Bauweise im Betrieb vergleichsweise hohe Abstrahlpegel verursacht. Insbesondere können die hohen Abstrahlpegel in der Bordelektronik Störungen auslösen, was insbesondere bei sicherheitsrelevanten Funktionen der Bordelektronik unter allen Umständen vermieden werden muss. Durch das erfindungsgemäße Adapterelement ist eine elektromagnetische Unverträglichkeit einer USB-Schnittstelle in einem Fahrzeug ausgeschlossen.Due to the high data transfer rates, z. B. 480 Mbit / s, occur in the adapter element high voltage frequencies, on the order of, for example, 40 MHz. It has now been shown that a corresponding Adapter element in conventional construction in operation causes comparatively high emission levels. In particular, the high emission levels in the on-board electronics can cause interference, which must be avoided under all circumstances, especially in safety-relevant functions of the on-board electronics. By the adapter element according to the invention an electromagnetic incompatibility of a USB interface in a vehicle is excluded.

Claims (7)

  1. Adapter element for serial data transmission in a vehicle, comprising
    • a first housing part (1) which is of electrically conductive design and can be connected to a shield,
    • a second housing part (2) which is likewise of electrically conductive design and has at least one contact element (2.1), wherein
    the two housing parts (1, 2) are arranged such that the second housing part (2) is surrounded by the first housing part (1) in a region (A) which extends along the longitudinal axis (X) of the adapter element, and the first housing part (1) makes electrical contact with the at least one contact element (2.1) in this region (A), wherein, in order to establish the contact-connection, the adapter element is configured such that accessibility from the outside with a directional component (y) orthogonal to the longitudinal axis (X) is ensured, characterized in that
    the second housing part (2) is surrounded by the first housing part (1) on both sides, so that
    the wall of the first housing part (1) has an outer wall, an inner wall (1.3) and a gap (1.2), which is situated between the outer wall and the inner wall (1.3), within a further region (U) which likewise extends along the longitudinal axis (X) within the region (A), wherein the wall of the first housing part (1) has a recess (1.1) for establishing the accessibility, and the inner wall (1.3) delimits the recess (1.1) in relation to the directional component (y) orthogonal to the longitudinal axis (X), so that the recess (1.1) in relation to the directional component (y) orthogonal to the longitudinal axis (X) does not pass completely through the wall of the first housing part (1), and the at least one contact element (2.1) is guided through the gap (1.2) when the first housing part (1) and the second housing part (2) are joined, and the second housing part (2) is arranged in the gap (1.2) in the further region (U).
  2. Adapter element according to Claim 1, wherein the first housing part (1) is integrally formed, in particular in the form of a cast part.
  3. Adapter element according to either of the preceding claims, wherein the first housing part (1) is produced by a zinc die-casting process or a metal injection-moulding process.
  4. Adapter element according to one of the preceding claims, wherein the first housing part (1) makes electrical contact with the contact element (2.1) by way of a weld connection.
  5. Adapter element according to one of the preceding claims, wherein the second housing part (2) surrounds a universal serial bus plug connector, in particular a standard plug or a standard socket of type A.
  6. Adapter element according to one of the preceding claims, wherein the first housing part (1) surrounds a quad-core plug connector, in particular a standard plug or a standard socket for a star-quad cable.
  7. Adapter element according to one of the preceding claims, wherein the first housing part (1) has a subregion (1.6) with a round cross section for connection to the shield.
EP10715099.7A 2009-04-29 2010-03-26 Adapting element for serial data transfer in a motor vehicle Active EP2425500B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009019137A DE102009019137A1 (en) 2009-04-29 2009-04-29 Adapter element for serial data transmission in a vehicle
PCT/EP2010/001907 WO2010124771A1 (en) 2009-04-29 2010-03-26 Adapting element for serial data transfer in a motor vehicle

Publications (2)

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EP2425500A1 EP2425500A1 (en) 2012-03-07
EP2425500B1 true EP2425500B1 (en) 2014-12-10

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US (1) US8628354B2 (en)
EP (1) EP2425500B1 (en)
CN (1) CN102439799B (en)
DE (1) DE102009019137A1 (en)
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WO (1) WO2010124771A1 (en)

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EP3448134A1 (en) * 2017-08-25 2019-02-27 Yamaichi Electronics Deutschland GmbH Connector system, connector element and method for producing a connector element
USD822607S1 (en) * 2017-09-29 2018-07-10 Molex, Llc Adapter for connector
USD821975S1 (en) * 2017-09-29 2018-07-03 Molex, Llc Adapter for connector
USD821976S1 (en) * 2017-09-29 2018-07-03 Molex, Llc Adapter for connector
USD839198S1 (en) * 2017-09-29 2019-01-29 Molex, Llc Adapter for connector

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MX2011011223A (en) 2011-11-18
WO2010124771A1 (en) 2010-11-04
US8628354B2 (en) 2014-01-14
US20120045943A1 (en) 2012-02-23
DE102009019137A1 (en) 2010-11-04
CN102439799A (en) 2012-05-02
EP2425500A1 (en) 2012-03-07
CN102439799B (en) 2014-06-25

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